Injector-burner.



No. 75,420. I

(No Model.)

Paterited Dec. 9., I902. E. REAGAN.

INJECTOR BURNER.

(Application filed May 28, 1902.]

a Sheeis-Shaai No. 715,420. I Patantedgflec. 9, 1902.

.E. REAGAN. v INJECTOR BURNER. (Applcation filed. Bay 26 1902) (NoModel.)

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No.,7l5,420. Patentad Dec; 9, 2902.

E. BEAGAN.

INJECTOR BURNER- (Application filed my 28. 1902.

3 Sheets-Sheet 3.

(Ho Model.)

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N u ME PATENT FFICE.

EDGAR REAGAN, OF FLORESVILLE, TEXAS.

iNJECTOR-BU RN ER.

SPECIFICATION forming part of Letters Patent No. 715,420, dated December9., 1902. Application filed May 28, 1902. Serial No. 108,998. (Nomodel.)

To all whmn, it may concern:

Be it known that I, EDGAR REAGAN, a citizen of the United States,residing at Floresville, in the county of Wilson and State of Texas,have invented certain new and useful Improvements in Injector-Burners;and I do hereby declare the following to be a full, clear,

and exact description of the invention, such as will en able othersskilled in the art to which it appertains to make and use the' same.

The object of my invention is to provide an improved injector-burner inwhich provision is especially made to provide a maximumheating-surface'for the walls of the oilchamber, the inner contour ofsaid walls being such as to cause a cyclonal or whirling motion to theoil as it enters the chamber, forcing it in contact with and causing itto be constantly distributed over the inner surface of the heated walls,thereby producing rapid vaporization.

It is also my object to provide an improved form of nozzle having anoil-outlet pipe which conducts the heated oil and vapor from theoil-chamber to the mixing-chamber in the nozzle and forces it throughthe steam to direct contact with the highly-heated walls of saidchamber, which thoroughly vaporizes the oil, and thus insures completeand instantaneous combustion of said vapor before it can be driven toany appreciable distance from the burner.

It is also my object to provide a detachable burner-nozzle which willafford ready access to the burner, including the oil and steam chambers,for cleaning, repair, renewal, or the substitution of tips affording adifferent character of flame, the construction being such that thecomponent parts of the nozzle, including its oil-outlet pipe, are alldetachably connected and can be readily duplicated.

It is also my object to provide a burner-tip designed to give a maximumspread of flame, and thereby avoid concentration of the heat upon anyone portion of the boiler, the shape of the tip being such as to deflectthe flame horizontally nearly in a circle, thereby spreading the flameevenly under the boiler and affording sufiicient rearward deflection tosuperheat the walls of the mixing-chamber.

It is also my object to provide an injectorburner with means forautomatically governing the flow of fuel-oil and steam to theburner,said means being adjustable and connected with the fuelsupply valves andprovided with an indicator which will register a steampressure in theboiler corresponding to the adjustment of said valves.

In'the accompanying drawings, forming a part of this specification,Figure 1 is a front elevation of my burner. Fig. 2 is a centrallongitudinal section taken through the oil and steam supply pipes andvalves, the oil and steam chambers, and the nozzle and tip. Fig. 3 is acentral vertical section showing the burner proper in side elevation.

Referring more particularly to the drawings, A denotes ahollow sphere,forming the steam or heating chamber, provided with diametricallyopposite collars e and d, threaded externally to receive a steam-feedpipe D, an oil-feed pipe E, and provided with a collar 17, threadedinternally to receive the nozzle of the burner. B denotes theburner-nozzle threaded externally at one end to enter the said collar inthe steam-chamber, and threaded at its opposite end to receive theburner tip.

C denotes the burner-tip, having a collar 0, threaded internally toreceive the nozzle and is formed of a hollow sphere divided by acircular cut or slot 0, which forms the mouth of the tip.

F denotes the oil-chamber, formed of a hollow sphere, inclosed withinand cast integral with the sphere A through a union f, leaving a spacebetween said spheres, which forms the steam-chamber for the circulationof steam.

G denotes an outlet-pipe leading from the oil-chamber to and through theburner-nozzle, terminating near the outlet end of the nozzle. The outerend of the oilpipe is threaded externally to receive aninternallythreaded cylindrical cap G, provided with a series of smallperforations g, surrounding the cap and arranged at an angle ordiagonally, so that the oil and vapor as they are forced out of saidopenings will come in contact with the walls of the mixing-chamber.

G denotes the mixing-chamber, which is located near the end of thenozzle immediately forward of and surrounding the cap G.

H denotes a cage formed of two cup-shaped castings bolted together bytheir flanged rims, between which rims is clamped a diaphragm H. Hdenotes a pipe connecting said cage with the steam-boiler.

I denotes a tube-shaped casting secured to the cage H, as shown in Fig.3, and threaded at its upper end to receive the threaded head J. Saidhead is bored centrally to receive, and has loosely mounted thereon, aplunger K, which bears by its lower flanged end upon said diaphragm.

L denotes a coiled spring surrounding the plunger, its upper end bearingupon the head J and its lower end bearing upon the lower or flanged endof said plunger. The upper end of the plunger is shouldered and threadedand is securely fastened by a nut 7i) to a yoke M, forming part of anadjustable valve-gear or frame, which is automatically operated byboiler-pressure through said plunger and diaphragm to control thefuel-supply valves, as hereinafter described.

The valve-gear consists of the yoke M and two depending arms M Mthreaded at their lower ends and united by nuts N N, provided with rightand left hand screwthreads, to depending connecting-rods O O. P P denotetwo links pivoted atone end to said rods and at their other ends toValve-spindles q q of fuel-supply valves Q Q, the valve Q serving tocontrol the supply of oil in the pipe E and the valve Q to control thesupply of steam in the pipe D.

R denotes a connecting-rod fastened by its upper end to the yoke M andpivoted at its lower end to a link R, which is connected to and operatesa rock-shaft r, to which shaft is fastened an indicator R S denotes anarc-shaped scale suitably graduated and rigidly fixed to the casting I.

My burner is operated as follows: In order to set the indicator to therequired steampressure in the boiler, the head J is adjusted up or down,carrying with it the yoke, which, through the arms, connecting-rods, andlinks, operates the valve-spindles and valves accordingly to give therequired supply of fuel. The action of boiler-pressure upon thediaphragm operates the plunger upward against the spring-pressurethereon, which actuates the valve-gear to reduce the amount offuelsupply, and when the pressure decreases the spring overcomes theresistance of the diaphragm, forces the plunger downward, thus actuatingthe valve-gear to increase the flow of fuel. Therefore the action ofboiler-pressure upon the valve-gear is automatic and regulates thesupply of fuel to keep up a given steam-pressure in the boiler. If itshould be desired to increase or decrease the relative supply of eithersteam or oil to the burner,

the nuts N N are designed for this purpose, 7

the nut N serving for such adjustment of the steam-supply and the nut Nfor the oil-supply.

The flame produced by my burner forms nearly a complete circle, thusgiving a maximum spread of flame under the boiler. The

advantage of the spherical tip is the maximum surface exposure its wallsoffer to the flame, which spreads around it, as well as under theboiler, thereby heating the walls of the tip and the walls of themixing-chamber intensely. As the oil is forced out of the cap G it isthrown directly against the highlyheated walls of the mixing-chamber, ismixed with steam, and is carried with the steam into the sphericalchamber of the tip, which is stillmoreintensely heated. The result ofthis mixture of the oil and steam in these highlyheated chambers is ahighly-inflammable mixture, causing it to ignite instantly at the mouthof the burner-tip. These are among the most important features of myinvention,

as my burner in this respect avoids the difficulty heretofore incidentto injectorburnersnamely, insufficient vaporization of the oil before itleaves the burner, causing it to be carried by the steam-pressure farback under the boiler before combustion takes place, efiecting aconcentration of the flame at this point, and in some instances a wastefrom unconsumed oil.

Another important feature of my invention is the spherical oil-chamberand its outletpipe. As the oil enters the chamber F it first flows downover its lower walls, is heated, and vaporized. The vaporized oil,immediately spreading over the highly-heated walls of this hollowsphere, is further vaporized, forming a vapor-gas. As the gas-pressureincreases it passes out of the pipe G, carrying with it but a smallproportion of the denser vapor. Such of this denser vapor as escapes isforced out of the opening gby gas-pressure directly in contact with thehighly-heated walls of the mixing-chamber, converting it into gas beforeit reaches the flame. As seen in Fig. 2, the pipe G projects within theoilchamber, with its inlet suspended above possible contact with theoil. By this construction I avoid the objection of feeding oil before itis vaporized to the mixing-chamber, causing part of it to be carried bysteampressure through the tip in liquid state.

Having thus shown and described my invention, what I claim, and desireto secure by Letters Patent, is

1. In an injector-burner a steam-chamber and an oil-chamber locatedwithin the steamchamber, a nozzle leading from the steamchamber andforming a mixing-chamber at its outer end, an outlet-pipe for theoil-chamber provided with apertures in its periphery near its outer endadapted to discharge its contents against the walls of the mixingchamberthe inner end of said outlet-pipe being suspended within the oil-chamberand curved in a direction away from the inletopening of the oil-chamber.

2. An injector-burner having a steam-chamber, an oil-chamber locatedwithin the steamchamber, a nozzle having a mixing-chamber at its outerend and leading from the steamchamber, a pipe leading from theoil-chamber and arranged within the nozzle and mixingeha'mber providedwith apertures arranged to discharge the contents of said pipe againstthe surrounding walls of the mixing-chamber, in combination with aburner-tip arranged at the end of said mixing-chamber provided with aslot arranged to discharge a portion of the flame against the walls ofthe mixingchamber.

3. An injector-burner for steam-boiler furnaces having oil and steamsupply pipes with valves for controlling the supply of oil and steam tothe burner and a body portion located between said supply-pipes havingan extension secured thereto inclosing a steamsteam supply valves.

In testimony whereof -I affix my signature in presence of two witnesses.

EDGAR REAGAN. Witnesses:

WM. 0. LOTT, E. F. MOOARTY.

